公开(公告)号：US20070093970A1

公开(公告)日：2007-04-26

申请号：US11186263

申请日：2005-07-21

申请人： Aravind Padmanabhan ,  Subash Krishnankutty ,  Wing Au ,  Mike Bazakos ,  Brian Krafthefer

发明人： Aravind Padmanabhan ,  Subash Krishnankutty ,  Wing Au ,  Mike Bazakos ,  Brian Krafthefer

IPC分类号： G06F19/00 ,  G08B19/00

CPC分类号： G08B21/12

摘要： A sensor network provides the ability to detect, classify and identify a diverse range of agents over a large area, such as a geographical region or building. The network possesses speed of detection, sensitivity, and specificity for the diverse range of agents. Different functional level types of sensors are employed in the network to perform early warning, broadband detection and highly specific and sensitive detection. A high probability of detection with low probability of false alarm is provided by the processing of information provided from multiple sensors. A Bayesian net is utilized to combine probabilities from the multiple sensors in the network to reach a decision regarding the presence or absence of a threat. The network is field portable and capable of autonomous operation. It also is capable of providing automated output decisions.

摘要翻译： 传感器网络提供检测，分类和识别大面积（例如地理区域或建筑物）上的各种代理的能力。 网络具有各种代理的检测速度，灵敏度和特异性。 在网络中采用不同功能级别的传感器进行预警，宽带检测和高度特异性和灵敏度的检测。 通过处理从多个传感器提供的信息来提供具有低误报率的检测的高概率。 使用贝叶斯网络来组合来自网络中的多个传感器的概率以达成有关威胁的存在或不存在的决定。 该网络是现场便携式的，能够进行自主操作。 它还能够提供自动输出决定。

公开(公告)号：US07096125B2

公开(公告)日：2006-08-22

申请号：US10024462

申请日：2001-12-17

申请人： Aravind Padmanabhan ,  Subash Krishnankutty ,  Wing Au ,  Mike Bazakos ,  Brian Krafthefer

发明人： Aravind Padmanabhan ,  Subash Krishnankutty ,  Wing Au ,  Mike Bazakos ,  Brian Krafthefer

IPC分类号： G01N31/00

CPC分类号： G08B21/12

摘要： A sensor network provides the ability to detect, classify and identify a diverse range of agents over a large area, such as a geographical region or building. The network possesses speed of detection, sensitivity, and specificity for the diverse range of agents. Different functional level types of sensors are employed in the network to perform early warning, broadband detection and highly specific and sensitive detection. A high probability of detection with low probability of false alarm is provided by the processing of information provided from multiple sensors. A Bayesian net is utilized to combine probabilities from the multiple sensors in the network to reach a decision regarding the presence or absence of a threat. The network is field portable and capable of autonomous operation. It also is capable of providing automated output decisions.

公开(公告)号：US20070271903A1

公开(公告)日：2007-11-29

申请号：US11836471

申请日：2007-08-09

申请人： Michael Rhodes ,  Brian Krafthefer

发明人： Michael Rhodes ,  Brian Krafthefer

IPC分类号： F02M25/06

CPC分类号： G01F1/7088 ,  F01N11/00 ,  F01N2560/05 ,  F01N2560/07 ,  F02D41/1441 ,  F02D41/1445 ,  F02D41/1466 ,  F02M26/46 ,  F02M26/47 ,  F02M26/49 ,  F02M26/50 ,  G01N15/0656 ,  G01N2015/0046 ,  Y02T10/47

摘要： A fluid conveyance apparatus having more than one particulate matter sensing probe situated at two or more locations on the apparatus. Signals from the probes from at least two locations may indicate particulate matter flowing within a fluid through the conveyance apparatus. The times between signals may be indicated the rate of movement of the particulate matter in the conveyance apparatus and also a flow rate and direction of the fluid. The sensing probe signals may be processed into control signals that may go to a flow control mechanism. An example application of the flow control mechanism may be for an exhaust gas recirculation system of an engine.

摘要翻译： 具有位于设备上两个或多个位置处的多于一个颗粒物质感测探针的流体输送装置。 来自至少两个位置的探针的信号可以指示通过输送装置在流体内流动的颗粒物质。 信号之间的时间可以指示输送装置中的颗粒物质的移动速率，以及流体的流速和流向。 感测探头信号可以被处理成可以进入流量控制机构的控制信号。 流量控制机构的示例性应用可以是用于发动机的废气再循环系统。

公开(公告)号：US08806958B2

公开(公告)日：2014-08-19

申请号：US13542494

申请日：2012-07-05

申请人： Andy Peczalski ,  Brian Krafthefer

发明人： Andy Peczalski ,  Brian Krafthefer

IPC分类号： G01F1/66

CPC分类号： G01F1/663 ,  G01F1/667

摘要： A flow sensor includes a plurality of ultrasonic transceivers and signal processing circuitry. The transceivers are coupled to a portion of the outer surface of a duct, and each is configured to transmit ultrasonic waves into a fluid, receive ultrasonic waves, and supply sensor signals representative of the received ultrasonic waves. The signal processing circuitry is configured to supply separate excitation signals to each of the ultrasonic transceivers, receive the sensor signals supplied by each of the ultrasonic transceivers, and generate, in response to the sensor signals, a flow signal representative of fluid flow in the flow passage. Each of the excitation signals has a different phase, such that the ultrasonic waves transmitted by each of the ultrasonic transceivers at least selectively combine to propagate in an adjustable direction relative to the flow direction.

摘要翻译： 流量传感器包括多个超声波收发器和信号处理电路。 收发器耦合到管道的外表面的一部分，并且每个收发器被配置为将超声波传输到流体中，接收超声波，并且提供表示所接收的超声波的传感器信号。 信号处理电路被配置为向每个超声波收发器提供单独的激励信号，接收由每个超声波收发器提供的传感器信号，并且响应于传感器信号产生代表流体中的流体流的流量信号 通道。 每个激励信号具有不同的相位，使得由每个超声波收发器传输的超声波至少选择性地组合以相对于流动方向在可调节的方向上传播。

公开(公告)号：US08511138B2

公开(公告)日：2013-08-20

申请号：US13285147

申请日：2011-10-31

申请人： Christopher Scott Larsen ,  Brian Krafthefer

发明人： Christopher Scott Larsen ,  Brian Krafthefer

IPC分类号： G01F25/00

CPC分类号： G01F25/0015

摘要： A piston prover apparatus, method and system for accurately measuring the flow rate of a fluid by the measurement of the position of an internal piston. The piston can be integrated with a poppet valve arrangement located within a cylinder in order to permit fluid (e.g., cryogenic fluid) to pass through an orifice passage when the piston is drawn to an upstream position prior to proving the flow. An actuator in association with a motor and an encoder can be located inside the cylinder. The motor drives the piston to the upstream position of the cylinder when a proving run is initiated. Once the piston is released for the proving run, the initial and final positions of the piston can be accurately measured along with the transit time.

摘要翻译： 一种用于通过测量内部活塞的位置来精确地测量流体的流量的活塞证明器装置，方法和系统。 活塞可以与位于气缸内的提升阀装置集成，以便当在证明流动之前将活塞拉到上游位置时允许流体（例如，低温流体）通过孔口通道。 与电机和编码器相关联的致动器可以位于气缸内。 当启动试运行时，电机将活塞驱动到气缸的上游位置。 一旦活塞被释放用于验证运行，活塞的初始和最终位置可以与运输时间一起精确测量。

公开(公告)号：US20130104621A1

公开(公告)日：2013-05-02

申请号：US13285147

申请日：2011-10-31

申请人： Christopher Scott Larsen ,  Brian Krafthefer

发明人： Christopher Scott Larsen ,  Brian Krafthefer

IPC分类号： G01F25/00

CPC分类号： G01F25/0015

摘要： A piston prover apparatus, method and system for accurately measuring the flow rate of a fluid by the measurement of the position of an internal piston. The piston can be integrated with a poppet valve arrangement located within a cylinder in order to permit fluid (e.g., cryogenic fluid) to pass through an orifice passage when the piston is drawn to an upstream position prior to proving the flow. An actuator in association with a motor and an encoder can be located inside the cylinder. The motor drives the piston to the upstream position of the cylinder when a proving run is initiated. Once the piston is released for the proving run, the initial and final positions of the piston can be accurately measured along with the transit time.

摘要翻译： 一种用于通过测量内部活塞的位置来精确地测量流体的流量的活塞证明器装置，方法和系统。 活塞可以与位于气缸内的提升阀装置集成，以便当在证明流动之前将活塞拉到上游位置时允许流体（例如，低温流体）通过孔口通道。 与电机和编码器相关联的致动器可以位于气缸内。 当启动试运行时，电机将活塞驱动到气缸的上游位置。 一旦活塞被释放用于验证运行，活塞的初始和最终位置可以与运输时间一起精确测量。

公开(公告)号：US20120085349A1

公开(公告)日：2012-04-12

申请号：US12899075

申请日：2010-10-06

申请人： Peter Tobias ,  Brian Krafthefer

发明人： Peter Tobias ,  Brian Krafthefer

IPC分类号： A61M16/00 ,  A62B7/10

CPC分类号： A61M16/107 ,  A61M2205/0227 ,  A61M2205/125 ,  A61M2205/17 ,  A61M2205/42 ,  A61M2205/705 ,  A62B9/006 ,  A62B19/00

摘要： The present disclosure relates to methods and apparatus for detecting when respiratory cartridges of a respirator have reached their end-of-service-life. In some instances, two or more respiratory cartridges are removably connectable to a respirator housing, where each of the two or more respiratory cartridges receives ambient air and deliver cleaned air to the respirator housing. One of the respiratory cartridges may be configured to have a lower adsorption capacity than the remaining respirator cartridges. A gas sensor may be situated downstream of the reduced capacity respirator cartridge, and may detect an increased concentration of the targeted gas in the cleaned air delivered by the reduced capacity respiratory cartridge. When detected, an end-of-service-life indication may be provided to the user.

摘要翻译： 本公开涉及用于检测呼吸器的呼吸盒何时已经达到使用寿命的方法和装置。 在一些情况下，两个或更多个呼吸盒可移除地连接到呼吸器壳体，其中两个或更多个呼吸盒中的每一个接收环境空气并将清洁的空气输送到呼吸器壳体。 其中一个呼吸盒可以被配置为具有比其余的呼吸器盒更低的吸附能力。 气体传感器可以位于容量较小的呼吸器筒的下游，并且可以检测由减小容量的呼吸筒输送的清洁空气中的目标气体的浓度增加。 当检测到时，可以向用户提供服务寿命终止指示。

公开(公告)号：US08813575B2

公开(公告)日：2014-08-26

申请号：US13494867

申请日：2012-06-12

申请人： Andy Peczalski ,  Brian Krafthefer

发明人： Andy Peczalski ,  Brian Krafthefer

IPC分类号： G01F1/66

CPC分类号： G01F1/662 ,  G01F1/667

摘要： A flow sensor includes a conduit and an ultrasonic transceiver. The conduit has an inner surface and an outer surface. The inner surface defines a flow passage through which a fluid may flow in a flow direction. The ultrasonic transceiver is coupled to, and surrounds a portion of, the outer surface of the conduit. The ultrasonic transceiver is configured to transmit ultrasonic waves into the fluid that propagate in a direction that is parallel to the flow direction, receive ultrasonic waves, and supply sensor signals representative of the received ultrasonic waves.

摘要翻译： 流量传感器包括导管和超声波收发器。 导管具有内表面和外表面。 内表面限定了流动通道，流体可以沿流动方向流动。 超声波收发器耦合到管道的外表面并且围绕导管的外表面的一部分。 超声波收发器被配置为将超声波传送到沿与流动方向平行的方向传播的流体，接收超声波，并且提供表示所接收的超声波的传感器信号。

公开(公告)号：US20060016246A1

公开(公告)日：2006-01-26

申请号：US11161221

申请日：2005-07-27

申请人： Michael Rhodes ,  Brian Krafthefer

发明人： Michael Rhodes ,  Brian Krafthefer

IPC分类号： G01N37/00

CPC分类号： G01F1/7088 ,  F01N11/00 ,  F01N2560/05 ,  F01N2560/07 ,  F02D41/1441 ,  F02D41/1445 ,  F02D41/1466 ,  F02M26/46 ,  F02M26/47 ,  F02M26/49 ,  F02M26/50 ,  G01N15/0656 ,  G01N2015/0046 ,  Y02T10/47

摘要： A fluid conveyance apparatus having more than one particulate matter sensing probe situated at two or more locations on the apparatus. Signals from the probes from at least two locations may indicate particulate matter flowing within a fluid through the conveyance apparatus. The times between signals may be indicated the rate of movement of the particulate matter in the conveyance apparatus and also a flow rate and direction of the fluid. The sensing probe signals may be processed into control signals that may go to a flow control mechanism. An example application of the flow control mechanism may be for an exhaust gas recirculation system of an engine.

摘要翻译： 具有位于设备上两个或多个位置处的多于一个颗粒物质感测探针的流体输送装置。 来自至少两个位置的探针的信号可以指示通过输送装置在流体内流动的颗粒物质。 信号之间的时间可以指示输送装置中的颗粒物质的移动速率，以及流体的流速和流向。 感测探头信号可以被处理成可以进入流量控制机构的控制信号。 流量控制机构的示例性应用可以是用于发动机的废气再循环系统。

公开(公告)号：US20050142035A1

公开(公告)日：2005-06-30

申请号：US10915577

申请日：2004-08-10

申请人： Ulrich Bonne ,  Stephen Shiffer ,  Brian Krafthefer

发明人： Ulrich Bonne ,  Stephen Shiffer ,  Brian Krafthefer

IPC分类号： F04B17/00 ,  F04F99/00 ,  G01N21/00 ,  G01N21/67 ,  G01N21/69 ,  H02N11/00

CPC分类号： B82Y10/00 ,  H02N11/006

摘要： A micro plasma sensor system having a glow discharge gap formed by electrodes. A fluid to be sensed may be brought into the vicinity of a discharge at the gap. Light from the discharge may be coupled to a spectrum analyzer and/or processor for determining properties of the fluid. A coupling may include a waveguide proximate to the discharge gap. Window cleanliness and electrode electrical isolation may be maintained by the discharge. The optical analyzer may have filters for one or more optical channels to detectors. The detectors may output electrical signals to be processed. The electrodes may be parallel to each other with a light waveguide between them. Or the electrodes may be concentric forming an annular discharge gap. The light waveguide may likewise be concentric to one or more electrodes. The waveguide may be one or more optical fibers, or tubular.

摘要翻译： 具有由电极形成的辉光放电间隙的微型等离子体传感器系统。 要感测的流体可以被带到间隙处的排出物附近。 来自放电的光可以耦合到频谱分析仪和/或处理器，用于确定流体的性质。 耦合可以包括靠近放电间隙的波导。 窗口清洁度和电极电气隔离可以通过放电来维持。 光学分析仪可以具有用于一个或多个光学通道到检测器的滤光器。 检测器可输出待处理的电信号。 电极可以在它们之间具有光波导彼此平行。 或者电极可以同心地形成环形放电间隙。 光波导同样可以与一个或多个电极同心。 波导可以是一个或多个光纤，或管状。